tree d71ba5c2f6b6aa1af4dc4395798ea274f373245e
parent c9b6339ad40cacb729cc714342d443e781fdfca3
author Jay Foad <jay.foad@amd.com> 1724420611 +0100
committer GitHub <noreply@github.com> 1724420611 +0100
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[AMDGPU] Improve uniform argument handling in InstCombineIntrinsic (#105812)

Common up handling of intrinsics that are a no-op on uniform arguments.
This catches a couple of new cases:

readlane (readlane x, y), z -> readlane x, y
(for any z, does not have to equal y).

permlane64 (readfirstlane x) -> readfirstlane x
(and likewise for any other uniform argument to permlane64).